I noticed your thread and wanted to thank you for your help. I have been trying to chase clouds myselfBut, now, since you have said try each resistance I have at 4 volts I am going to give it try! Although, taste is what is most important to me.
If you are using a cartomizer or clearomizer, I would honestly say you don't have to worry too much about it. Get some LR coils, and vape at what suits you.
If you want to cloud chase, I recommend getting a RDA, which can be acquired pretty cheaply, and start building coils. Mess with the number of wraps, the gauge of the coil, the size of the airholes, etc. There are more factors in vapor production than just ohms and wire temperature. Airflow is also a big factor in delivering huge vapor clouds and I have personally noticed that different mixtures of PG/VG in an e-liquid also affects the thickness of the vapor.
As far as flavor goes, in my opinion rebuildables (when built correctly) always deliver a better flavor than OTC coils.